Home / 421,951,739.40-633,143,433.66-200,872,873.80

Finding the Fourth Proportional to 421,951,739.40, 633,143,433.66 and 200,872,873.80

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Solution

The fourth proportional to 421,951,739.40, 633,143,433.66 and 200,872,873.80 is: 301,412,055.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,951,739.40 : 633,143,433.66 = 200,872,873.80 : x
  2. Step 2: Convert to fraction form
    421,951,739.40/633,143,433.66 = 200,872,873.80/x
  3. Step 3: Cross multiply
    421,951,739.40x = 633,143,433.66 × 200,872,873.80
  4. Step 4: Simplify right side
    421,951,739.40x = 127,181,341,046,883,856
  5. Step 5: Solve for x
    x = 127,181,341,046,883,856/421,951,739.40
  6. Step 6: Final answer
    x = 301,412,055.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.